World health organization estimates around 32 million children suffer from hearing loss. Hearing loss significantly affects the speech and language development of children. Onset of causes for hearing loss can occur as early as at embryonic development. Understanding hearing loss and their causes facilitates early intervention.The article provides an intuition into the reversible and irreversible causes for hearing loss at different stages through childhood.

Keywords: Conductive Hearing Loss; Sensori-Neural Hearing Loss; Syndromic; Non-Syndromic; Otitis Media; Pre-Natal; Peri-Natal; Post -Natal.